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Here am going to show you JQuery code to append html using div id
suppose i have html code like below i need append a text content to the html area when user entering any text
<input type="text" value="" id="inputarea"> <div id="html_area"> </div>
$(document).ready(function(){
$("#inputarea").blur(function(){
$("#html_areap").append("<b>User Is typing a text</b>");
});
});
PHP have date function get all the information related to date here we have to search find out PHP code to find the current year,current month and current day , current year,current month and current day can be easily find out using date() function let me check how to do it
php code to find current year
<?php
echo date('Y'); //Capital Letter Y
Out Put
2019
?>
<?php
echo date('y'); //Small letter y
Out Put
19
?>
php code to find current month
<?php
echo date('M');
Out Put
Jul
?>
<?php
echo date('m');
Out Put
07
?>
php code to find current day
<?php
echo date('D');
Out Put
Mon
?>
<?php
echo date('d');
Out Put
08
?>
Here we are trying to find out how to add php try catch exception handling code in your PHP .we know that like every programming language php also as its on error handling method, Exception handling in PHP ,new object oriented way of dealing with errors, we have have PHP try catch exception handling code
Here is the syntax
//trigger exception in a "try" block
try {
}
//catch exception
catch(Exception $e) {
echo 'Error: ' .$e->getMessage();
}
See PHP try catch exception handling code with example
try {
$status = 1;
$cont = $this->conn;
$sql = "INSERTED INTO menu(display_name, menu_link, status,sort_order,menu_slug) VALUES(:menu_title,:menu_link,:status,:sort_order,:menu_slug)";
$new_db = $cont->prepare($sql);
$new_db->bindParam(':menu_title', $data['menu_title']);
$new_db->bindParam(':menu_link', $data['menu_link']);
$new_db->bindParam(':sort_order', $data['sort_order']);
$new_db->bindParam(':status', $status);
if($data['menu_slug']!='')
{
$slug_value=$data['menu_slug'];
}
else
{
$slug_value=$data['menu_title'];
}
$slug = $this->generate_sub_menu_slug($extra_string='',$slug_value);
$new_db->bindParam(':menu_slug', $slug);
$new_db->execute();
} catch (PDOException $e) {
echo "Error: " . $e->getMessage();
}
In the above example MySQL INSERT syntax is wrong so this php code through an Exception error that says SQL state error
try {
$status = 1;
$cont = $this->conn;
$sql = "INSERT INTO menu(display_name, menu_link, status,sort_order,menu_slug) VALUES(:menu_title,:menu_link,:status,:sort_order,:menu_slug)";
$new_db = $cont->prepare($sql);
$new_db->bindParam(':menu_title', $data['menu_title']);
$new_db->bindParam(':menu_link', $data['menu_link']);
$new_db->bindParam(':sort_order', $data['sort_order']);
$new_db->bindParam(':status', $status);
if($data['menu_slug']!='')
{
$slug_value=$data['menu_slug'];
}
else
{
$slug_value=$data['menu_title'];
}
$slug = $this->generate_sub_menu_slug($extra_string='',$slug_value);
$new_db->bindParam(':menu_slug', $slug);
$new_db->execute();
} catch (PDOException $e) {
echo "Error: " . $e->getMessage();
}
Suppose we have file named file.txt we have read a file content line by line using PHP , here our objective is to retrieve a file data line by line using PHP.we know we have most famous php function fopen(“File name”,”r”),it will read entire content from the files and store it in the defined variable
see example
$f_data = fopen("file.txt","r");
Now our question how to read line by line using PHP
Now we know the entire data is their in $f_data,next we have to read line by line using PHP , with the help of while loop we can do that ,for line by line read we use one more function called feof($f_data) which find out the end of the file see full example
$f_data = fopen("file.txt","r");
while(! feof($f_data)) {
$result = fgets($f_data);
echo $result."
";
echo "Good"."
";
}
fclose($f_data);
e.g
file.txt
Sunday is weekend day Monday is weekstart day
Out Put
Sunday is weekend day
Good
Monday is weekstart day
Good